At present, the copper resources supply is very demanding, with society develops quickly. The increment of copper cable theft is due to the interest of its characteristic of low transmission voltage, dispersed layout, and high Cu in the material composition. The public utilities such as telecommunication providers faced plenty of troubles and dangers as they are the primary target. As a result of cable theft, the consumers cannot use the telephony system or internet services at their premises. These affect the communication between families, clients, and business purposes, including for emergency cases. Therefore, to prevent cable theft widespread, this work creates a device that is capable of alarming the responsible party when the copper at a specified location has been cut-off or tempered by thieves. A prototype has been developed for this work. Upon detection of a cable cut occurrence, this system will automatically activate the alarm and provide a display to indicate the specific location of where the cable was cut off. The system is controlled by an MCU unit (PIC16F877A). This work is using cable feeders in which the arrangement of the resistor in parallel determines the distance of the cable is terminated with the aid of the voltage divider concept.
